body{
    padding: 0px;
    margin: 0px;
}

.mainDiv{
    display: flex;
    width: 100%;
}
.leftNav{
    width: 16%;
    background-color: #c0c0c0;
    color:#333;
    font-size:24px;
    height: 1000px;
    padding: 20px;
}
.rightMain{
    width: 84%;
    height:1000px;
    background-color: #fff;
    font-size:20px;
    
}
.topNav{
    height:50px ;
    background-color: #cfdefd;
}
.topNav ul{
   display: flex; 
   margin: 0px;
   padding: 0px;
}
.topNav li{
   padding: 10px;
   text-align: center;
   list-style: none;
 }
 .videoContent{
     padding:20px;
 }
